uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AD7BT callsign genealogy

Currently held by DOUGLAS, ARTHUR E

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by AD7BT's current licensee, walking backwards.

  1. AF7NLcancelled· E
    Douglas, Arthur EORgranted 2014-12-16cancelled 2015-02-28
  2. KG7PSRcancelled· E
    Douglas, Arthur EORgranted 2014-12-16cancelled 2014-12-31

Successor callsigns

Callsigns held now by people who previously held AD7BT.

  1. KV2Ncancelled· E
    Marcus, MatUTgranted 2013-12-25cancelled 2022-07-26

All historical holders

Every license row we've seen with the callsign AD7BT, oldest first.

  • Marcus, Mat WA
    2004-02-20 → cancelled 2004-03-10
  • DOUGLAS, ARTHUR E OR
    2025-04-08 active
← Back to AD7BT License history →